4a 



DYNAMIC METEOROLOGY AND HYDROGRAPHY. 



Table 3 H. Depths reduced from meters to dynamic meters, the acceleration of gravity at 



sea-level being Q.80. 



Table 4H. Corrections to table J H for values of the acceleration of gravity different from 9.80 



Dynamic 

 Example Depth 2734 meters, gravity at sea-level 9.782S : meters. 



Table 3 h gives for the depth 2700 meters 2647 



Proportionality table gives for the depth 34 meters +33 



Table 4H gives for gravity 9.7S28 at sea-level and depth 2734 meters 4 



Dynamic depth corresponding to the geometric depth 2734 2676 



